Medical three-way valve with filtering device

Abstract

The utility model provides a medical three-way valve with a filtering device, which comprises a fixing sleeve, the side wall of the fixing sleeve is vertically and fixedly connected with two first joints respectively, and one side of the fixing sleeve is fixedly connected with a connecting rod; the two ends of a mounting rod are in threaded connection with the connecting rod and the second connector correspondingly, and limiting rings are symmetrically and fixedly connected to the interior of the mounting rod. A clamping ring is slidably connected to the interior of the mounting rod, the clamping ring abuts against the second connector and the side wall of the limiting ring, a filter membrane with the arc-shaped side wall is mounted in the clamping ring, and part of the filter membrane is located in the second connector. The medical three-way valve with the filtering device has the advantages that impurities are prevented from being pushed into the body of a patient, and medication safety of the patient is guaranteed to the maximum extent.

Description

Technical Field

[0001] This utility model relates to the field of medical three-way valve technology, and in particular to a medical three-way valve with a filter device. Background Technology

[0002] Medical three-way valves are widely used in clinical practice. They avoid the disadvantages of multiple fluid lines and multiple puncture points, reduce the pain caused to patients, reduce the workload of nursing staff, improve work efficiency, and play a very important role in clinical treatment.

[0003] Because the proximal end of the three-way valve does not have a filter structure, when drugs are injected through the three-way valve, impurities in the drug or impurities in the syringe are pushed into the patient's body. Furthermore, multiple drugs are mixed inside the three-way valve before being delivered into the human body, but different drugs may react to form precipitates. These precipitates enter the human body and affect people's health.

[0004] Therefore, it is necessary to provide a new medical three-way valve with a filter to solve the above problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a medical three-way valve with a filter device that prevents impurities from being pushed into the patient's body and ensures the patient's medication safety to the greatest extent.

[0006] To solve the above-mentioned technical problems, the present invention provides a medical three-way valve with a filter device, comprising: a fixing sleeve, two first connectors being vertically fixedly connected to the side walls of the fixing sleeve, and a connecting rod being fixedly connected to one side of the fixing sleeve; the two ends of the mounting rod being threadedly connected to the connecting rod and the second connector, respectively, and a limiting ring being symmetrically fixedly connected inside the mounting rod; and a retaining ring being slidably connected inside the mounting rod, the retaining ring abutting against the side walls of the second connector and the limiting ring, and an arc-shaped filter membrane being installed inside the retaining ring, with part of the filter membrane located inside the second connector.

[0007] Preferably, the fixed sleeve has an internally rotating valve ball, and the valve ball has an internally connected groove with a "T"-shaped cross-section. One end of the connected groove is aligned with the interior of the first connector and the connecting rod, respectively.

[0008] Preferably, the knob is rotatably connected inside the fixed sleeve, and the knob is fixedly connected to the valve ball.

[0009] Preferably, the mounting rod has an internal sliding connection to a swivel ring, the two ends of which abut against the limiting ring and the connecting rod, respectively, and the sidewall of the swivel ring has multiple through holes.

[0010] Preferably, the through hole is funnel-shaped, the through hole is inclined on the side wall of the turbulence ring, and the outlet of the through hole faces the center of the interior of the mounting rod.

[0011] Preferably, both the first connector and the second connector have multiple grooves inside, and multiple protrusions are installed inside the grooves.

[0012] Preferably, the sidewall of the groove has a trapezoidal cross-section, the sidewall of the protrusion has an arc shape, and the height of the protrusion gradually increases along the direction from the outside to the inside of the joint.

[0013] Compared with related technologies, the medical three-way valve with a filter device provided by this utility model has the following advantages:

[0014] Beneficial effects:

[0015] This utility model provides a medical three-way valve with a filter device. The retaining ring is inserted into the interior of the mounting rod, and the mounting rod is threadedly connected to the second connector. As the second connector enters the interior of the mounting rod, it presses against the retaining ring, fixing the retaining ring and the filter membrane inside the mounting rod. A flow-deflecting ring is then inserted into the interior of the mounting rod, and the mounting rod is threadedly connected to the connecting rod, allowing the connecting rod to enter the interior of the mounting rod and press against and fix the flow-deflecting ring, thus facilitating the installation of the filter membrane and the flow-deflecting ring. When using this device, the second connector is connected to an infusion tube connected to the human body, and the first connector is connected to an infusion tube for delivering medication. The first connector is the distal end, and the second connector is the proximal end. During medication delivery... The liquid medicine enters the interior of the connecting rod through the first connector and contacts the turbulence ring. The turbulence ring blocks the liquid flow, causing the liquid to exit through the through hole, thus mixing the liquid medicine on one side of the turbulence ring. The through hole is funnel-shaped, gradually reducing the space for liquid movement inside the through hole, accelerating the liquid inside the through hole. The through hole is inclined on the side wall of the turbulence ring, and the outlet of the through hole faces the center of the interior of the mounting rod. The liquid sprayed from the through hole converges at the center of the interior of the mounting rod, making the liquid medicine more evenly mixed and preventing the liquid medicine from reacting only after entering the human body. The liquid medicine contacts the filter membrane, which filters impurities in the liquid medicine. The side wall of the filter membrane is arc-shaped, increasing the contact area between the liquid medicine and the filter membrane, thereby accelerating the filtration efficiency of the liquid medicine. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the medical three-way valve with a filter device provided by this utility model;

[0017] Figure 2 for Figure 1The top view of the internal structure of the fixed sleeve is shown.

[0018] Figure 3 for Figure 2 The diagram shows an enlarged view of the structure at point A.

[0019] Figure 4 for Figure 3 The diagram shows the structure of the turbulence ring.

[0020] Figure 5 for Figure 2 The diagram shows an enlarged view of the structure at point B.

[0021] The following are the labels in the diagram: 1. First connector, 2. Screw sleeve, 3. Connecting rod, 4. Second connector, 5. Mounting rod, 51. Limiting ring, 6. Fixing sleeve, 61. Knob, 62. Valve ball, 63. Connecting groove, 7. Turbulence ring, 71. Through hole, 8. Snap ring, 81. Filter membrane, 9. Groove, 10. Protrusion. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1 to 5 , Figure 1 A schematic diagram of a preferred embodiment of the medical three-way valve with a filter device provided by this utility model; Figure 2 for Figure 1 The top view of the internal structure of the fixed sleeve is shown. Figure 3 for Figure 2 The diagram shows an enlarged view of the structure at point A. Figure 4 for Figure 3 The diagram shows the structure of the turbulence ring. Figure 5 for Figure 2 The diagram shows an enlarged view of the structure at point B. The medical three-way valve with a filter includes: a fixing sleeve 6, whose sidewalls are vertically fixedly connected to two first connectors 1. One end of each first connector 1 is threadedly connected to a threaded sleeve 2, with the threaded sleeve 2 protecting the first connector 1.

[0024] The fixed sleeve 6 is internally connected to a rotatable valve ball 62. The valve ball 62 has a T-shaped cross-section connecting groove 63 inside, one end of which is aligned with the interior of the first connector 1 and the connecting rod 3. The fixed sleeve 6 is internally connected to a rotatable knob 61, which is fixedly connected to the valve ball 62. To facilitate rotation of the knob 61, the knob 61 drives the valve ball 62 and the connecting groove 63 to rotate inside the fixed sleeve 6, allowing the connecting groove 63 to communicate with the first connector 1 and the connecting rod 3, so that the liquid medicine inside the first connector 1 enters the interior of the connecting rod 3 through the connecting groove 63.

[0025] One side of the fixed sleeve 6 is fixedly connected to the connecting rod 3; both ends of the mounting rod 5 are threadedly connected to the connecting rod 3 and the second connector 4 respectively, and the mounting rod 5 is symmetrically fixedly connected to the limiting ring 51; the mounting rod 5 is slidably connected to the retaining ring 8, which abuts against the sidewalls of the second connector 4 and the limiting ring 51, and the retaining ring 8 has an arc-shaped filter membrane 81 installed inside, with part of the filter membrane 81 located inside the second connector 4. The mounting rod 5 is slidably connected to the turbulence ring 7, both ends of which abut against the limiting ring 51 and the connecting rod 3 respectively, and the sidewall of the turbulence ring 7 is provided with multiple through holes 71; the through holes 71 are funnel-shaped, and the through holes 71 are inclinedly arranged on the sidewall of the turbulence ring 7, with the outlet of the through holes 71 facing the center of the interior of the mounting rod 5. Insert the retaining ring 8 into the mounting rod 5, and thread the mounting rod 5 to the second connector 4. As the second connector 4 enters the mounting rod 5, it presses against the retaining ring 8, fixing the retaining ring 8 and the filter membrane 81 inside the mounting rod 5. Insert the turbulence ring 7 into the mounting rod 5, and then thread the mounting rod 5 to the connecting rod 3, allowing the connecting rod 3 to enter the mounting rod 5 and press against and fix the turbulence ring 7, thus facilitating the installation of the filter membrane 81 and the turbulence ring 7. When using this device, connect the second connector 4 to the infusion tubing connected to the human body, and connect the first connector 1 to the infusion tubing for delivering the medication. The first connector 1 is the distal end, and the second connector 4 is the proximal end. When delivering the medication, the medication enters through the first connector 1. The liquid enters the interior of the connecting rod 3 and contacts the turbulence ring 7. The turbulence ring 7 blocks the flow of liquid, allowing the liquid to be discharged through the through hole 71, thus mixing the medicine on one side of the turbulence ring 7. The through hole 71 is funnel-shaped, and the space for liquid movement inside the through hole 71 gradually decreases, accelerating the liquid inside the through hole 71. The through hole 71 is inclined on the side wall of the turbulence ring 7, and the outlet of the through hole 71 faces the center of the interior of the mounting rod 5. The liquid sprayed from the through hole 71 converges at the center of the interior of the mounting rod 5, making the medicine more evenly mixed and preventing the medicine from reacting only after entering the human body. The medicine comes into contact with the filter membrane 81, which filters impurities in the medicine. The side wall of the filter membrane 81 is arc-shaped, increasing the contact area between the medicine and the filter membrane 81, thereby accelerating the filtration efficiency of the medicine.

[0026] Both the first connector 1 and the second connector 4 have multiple grooves 9 inside, and multiple protrusions 10 are installed inside the grooves 9. The sidewall of the groove 9 has a trapezoidal cross-section, and the sidewall of the protrusion 10 has an arc shape. When the infusion tube enters the connector, the infusion tube squeezes the protrusion 10 inside the groove 9, causing the arc-shaped protrusion 10 to enter the groove 9. When the infusion tube stops entering the connector, the protrusion 10 deforms inside the groove 9, hooking the sidewall of the infusion tube. The direction in which the infusion tube slides out of the connector is opposite to the bending direction of the protrusion 10. The protrusion 10 prevents the infusion tube from sliding out of the connector, and the height of the protrusion 10 gradually increases along the direction from the outside to the inside of the connector. As the infusion tube enters, the contact area between the protrusion 10 and the infusion tube increases, increasing the resistance to the infusion tube exiting the connector. This avoids the problem of the infusion tube becoming loose during use due to the smoothness and lack of threads at the connector.

[0027] The working principle of this utility model is as follows: the turbulence ring 7 is placed inside the mounting rod 5, and then the mounting rod 5 and the connecting rod 3 are threaded together, so that the connecting rod 3 enters the interior of the mounting rod 5 and squeezes and fixes the turbulence ring 7, thereby facilitating the installation of the filter membrane 81 and the turbulence ring 7; when using this device, the second connector 4 is connected to the infusion tube connected to the human body, and the first connector 1 is connected to the infusion tube for delivering drugs, the first connector 1 is the distal end, and the second connector 4 is the proximal end; when the infusion tube is installed on the side wall of this device, when the infusion tube enters the interior of the connector, the infusion tube squeezes the protrusion 10 inside the groove 9, so that the arc-shaped protrusion 10 on the side wall enters the interior of the groove 9, which facilitates the infusion tube entering the interior of the connector. When the infusion tube stops entering the connector, the elastic protrusion 10 deforms inside the groove 9, hooking onto the side wall of the infusion tube. The direction in which the infusion tube slides out of the connector is opposite to the bending direction of the protrusion 10. The protrusion 10 prevents the infusion tube from sliding out of the connector, and the height of the protrusion 10 gradually increases along the connector from the outside to the inside. As the infusion tube enters, the contact area between the protrusion 10 and the infusion tube increases, increasing the resistance to the infusion tube exiting the connector. This avoids the problem of the infusion tube loosening during use due to the smoothness and lack of threads at the connector. When delivering the medication, rotating the knob 61 causes the valve ball 62 and the connecting groove 63 to rotate inside the fixed sleeve 6, so that the connecting groove 63 communicates with the first connector 1 and the connecting rod 3, allowing the medication inside the first connector 1 to enter the interior of the connecting rod 3 through the connecting groove 63. The liquid medicine enters the interior of the connecting rod 3 and contacts the turbulence ring 7. The turbulence ring 7 blocks the liquid flow, causing the liquid to be discharged through the through hole 71, thus mixing the liquid medicine on one side of the turbulence ring 7. The through hole 71 is funnel-shaped, and the space for liquid movement inside the through hole 71 gradually decreases, accelerating the liquid inside the through hole 71. The through hole 71 is inclined on the side wall of the turbulence ring 7, and the outlet of the through hole 71 faces the center of the interior of the mounting rod 5. The liquid sprayed from the through hole 71 converges at the center of the interior of the mounting rod 5, making the liquid medicine more evenly mixed and preventing the liquid medicine from reacting only after entering the human body. The liquid medicine contacts the filter membrane 81, which filters impurities in the liquid medicine. The side wall of the filter membrane 81 is arc-shaped, increasing the contact area between the liquid medicine and the filter membrane 81, thereby accelerating the filtration efficiency of the liquid medicine.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A medical three-way valve with a filter device, characterized in that, include: A fixing sleeve (6) is provided, and two first joints (1) are vertically fixedly connected to the side wall of the fixing sleeve (6). One end of the first joint (1) is threadedly connected to the screw sleeve (2), and a connecting rod (3) is fixedly connected to one side of the fixing sleeve (6). The two ends of the mounting rod (5) are threadedly connected to the connecting rod (3) and the second connector (4) respectively. The mounting rod (5) is symmetrically fixed with a limiting ring (51) inside. The mounting rod (5) is slidably connected with a retaining ring (8) inside. The retaining ring (8) abuts against the side wall of the second connector (4) and the limiting ring (51). The retaining ring (8) is installed with an arc-shaped filter membrane (81) inside, and part of the filter membrane (81) is located inside the second connector (4).

2. The medical three-way valve with a filter device according to claim 1, characterized in that, The fixed sleeve (6) is internally connected to a rotating valve ball (62). The valve ball (62) has a T-shaped connecting groove (63) inside. One end of the connecting groove (63) is aligned with the inside of the first connector (1) and the connecting rod (3).

3. The medical three-way valve with a filter device according to claim 2, characterized in that, The knob (61) is rotatably connected inside the fixed sleeve (6), and the knob (61) is fixedly connected to the valve ball (62).

4. The medical three-way valve with a filter device according to claim 1, characterized in that, The mounting rod (5) is internally connected to a slidable baffle ring (7). The two ends of the baffle ring (7) abut against the limiting ring (51) and the connecting rod (3) respectively, and the side wall of the baffle ring (7) is provided with multiple through holes (71).

5. The medical three-way valve with a filter device according to claim 4, characterized in that, The through hole (71) is funnel-shaped and is inclined on the side wall of the turbulence ring (7), with the outlet of the through hole (71) facing the center of the interior of the mounting rod (5).

6. The medical three-way valve with a filter device according to claim 1, characterized in that, Both the first connector (1) and the second connector (4) have multiple grooves (9) inside, and multiple protrusions (10) are installed inside the grooves (9).

7. The medical three-way valve with a filter device according to claim 6, characterized in that, The sidewall of the groove (9) has a trapezoidal cross-section, the sidewall of the protrusion (10) has an arc shape, and the height of the protrusion (10) gradually increases along the direction from the outside to the inside of the joint.

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